Competition between microbial sulfate reduction and methanogenesis drives cycling of fossil carbon and generation of CH4 in sedimentary basins. However, little is understood about the fundamental relationship between subsurface aqueous geochemistry and microbiology that drives these processes. Here...

The USGS has published reports and journal articles on a large number of topics related to the Chesapeake Bay and its watershed. Some recent reports are online. Findings from the publications are used by Chesapeake Bay Program resource managers and policy makers to make science-based decisions for ecosystem conservation and restoration. USGS...

Data were collected to determine the abundance of nitrogen-fixing microorganisms in Cladophora algae growing on rocks, breakwall structures, or submerged dreissenid mussel beds around southern Lake Michigan. Cladophora samples (N=33) were collected between June and September 2015 from three urban areas: (a) Jeorse Park, East Chicago, Indiana, (b)...

Theresa Presser is a Research Chemist with the Earth System Processes Division of the Water Mission Area in Menlo Park, California. Her expertise is the environmental science of selenium. Selenium is a reproductive toxin that bioaccumulates through food webs to affect top predator species. Her field studies and body of site...

Rebecca began her career at the USGS in 1997 working as a laboratory scientist in the Ohio Water Microbiology Laboratory (OWML). She became the Laboratory Manager of the OWML in 2005 and has led research projects focused on monitoring for microbiological indicators and pathogens in water and understanding the processes that affect these organisms...

S Gold, a student researching projects for a master’s degree at Western Carolina University, saw the news coverage last fall about the DEEP SEARCH research expedition to a large deep-sea coral area off the South Carolina coast and reached out to SPCMSC Research Microbiologist Christina Kellogg about doing a master’s project...

Since 1991, as a Research Chemist with USGS, Dr. Alpers has led numerous water-quality investigations involving the environmental effects of historical mining. This work has included research on acid mine drainage at the Iron Mountain Superfund site, including documentation of negative-pH water and associated sulfate minerals. Since 1999, he...

Bruce K. QuirkandDenise Akob and Karl HaaseIn recognition of their outstanding acts, services, and achievements that exemplify and support the USGS leadership goals throughout the Bureau.Honor awards will be presented at the U.S. Geological Survey’s Honor Awards Ceremony in Reston.

Dr. Sasha Reed is an ecologist focused on understanding how our nation's ecosystems work and what factors determine the services they provide. The study sites and methods Sasha uses are diverse, and with each of her projects she strives to provide scientific information that helps our nation address challenges, solve problems, and maximize...

BiographyDr. Iwanowicz is a research biologist at the USGS, Leetown Science Center, National Fish Health Research Laboratory in Leetown, WV. His primary research focuses on the application of resident fishes as sentinels of aquatic ecosystem health, the development of molecular tools for field study, and the...

My research is focused on characterizing how microbes influence the geochemistry and carbon and nutrient cycling in surface water, ground water and coastal marine water and associated sediment systems thru the application of phylogenetics, microbial energetics and stable isotopes and radiolabeled substrates.

Dale is currently employed by the U.S. Geological Survey as an environmental public health microbiologist and is working on microbial water quality issues and long range dust storm associated dispersion of microorganisms around the globe.

Blaine McCleskey started his career with the U.S. Geological Survey in 1997 as a chemist in the National Research Program. In 2010, he obtained a Ph.D. from the University of Colorado where he developed a method to calculate the electrical conductivity of natural waters from its chemical composition. He is currently involved in several...

The USGS Kentucky office hosted their third annual cooperator meeting on April 18, 2019 and the Indiana office hosted their second cooperator meeting on April 23, 2019. OKI Staff gave presentations and technolgy demonstrations for an audience of local, state, and federal cooperators and USGS staff.
The USGS Ohio office will host their first...

Education:B. S. Civil Engineering, Pennsylvania State University, 1994Professional Experience:I have worked for over 22 years with the U.S. Geological Survey (USGS) and have lead a variety of projects with an emphasis in ground water and surface water hydrology, water quality, microbiology, and statistics as...